Selective introduction of Cu impurity into fine-dispersed ZnS obtained during the process of one-stage synthesis.

Fine ZnS:Cu, obtained by method of self-propagating high-temperature synthesis was investigated. As flux in the mixture NaCl was used, Zn and S were taken in stoichiometric ratio; Cu concentration in charge consisted ~1.5 wt.%. Using SEM data, it was established that obtained ZnS:Cu consists from two fractions-first with particles sizes ~10 µm and more, and other with sizes 50-500 nm. It was established that composition of ZnS:Cu fractions was essentially different. According to EDS data, Cu concentration in particles of fraction with 50-500 nm sizes consists ~2 wt.%, and in particles with sizes ~10 µm and more the presence of Cu was not detected. The reasons that lead to the selective doping of particles in dependence on their size and also the role of NaCl in processes undergoing during synthesis of material are discussed.

[Results of the activity of pathoanatomical service in Kuzbass after its reorganization].

A new structure of the pathology service in the Kemerovo region which includes Kuznetsk area and its activity is considered.

[Diagnostic value of cellular immunity indices in oncological practice]. / Diagnosticheskaia tsennost' nekotorykh pokazatelei kletochnogo immuniteta v onkologicheskoi praktike.

A skin test to DNCB, the reaction on spontaneous rosette formation, the lymphocyte blasttransformation reaction to PHA, and the leucocyte migration inhibition test were utilized in examining 501 human subjects (157--control group, 41--patients with benign tumors of the mammary gland and lung and 303--patients with cancer of the lung, breast, rectum and lymphogranulomatosis). The results obtained were processed after the V. S. Genes method. The examinations performed revealed no diagnostic value of the tests under study in patients with malignancies, benign tumors and lesions of a non-tumor origin.